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/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "battery_smart.h"
#include "charge_manager.h"
#include "charger.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/charger/sm5803.h"
#include "driver/tcpm/tcpci.h"
#include "usb_pd.h"
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
int pd_check_vconn_swap(int port)
{
/* Allow VCONN swaps if the AP is on */
return chipset_in_state(CHIPSET_STATE_ANY_SUSPEND | CHIPSET_STATE_ON);
}
void pd_power_supply_reset(int port)
{
int prev_en;
if (port < 0 || port >= board_get_usb_pd_port_count())
return;
prev_en = charger_is_sourcing_otg_power(port);
/* Disable Vbus */
charger_enable_otg_power(port, 0);
/* Discharge Vbus if previously enabled */
if (prev_en)
sm5803_set_vbus_disch(port, 1);
/* Notify host of power info change. */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}
int pd_set_power_supply_ready(int port)
{
enum ec_error_list rv;
/* Disable sinking */
rv = sm5803_vbus_sink_enable(port, 0);
if (rv)
return rv;
/* Disable Vbus discharge */
sm5803_set_vbus_disch(port, 0);
/* Provide Vbus */
charger_enable_otg_power(port, 1);
/* Notify host of power info change. */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
return EC_SUCCESS;
}
__override bool pd_check_vbus_level(int port, enum vbus_level level)
{
int vbus_voltage;
/* If we're unable to speak to the charger, best to guess false */
if (charger_get_vbus_voltage(port, &vbus_voltage))
return false;
if (level == VBUS_SAFE0V)
return vbus_voltage < PD_V_SAFE0V_MAX;
else if (level == VBUS_PRESENT)
return vbus_voltage > PD_V_SAFE5V_MIN;
else
return vbus_voltage < PD_V_SINK_DISCONNECT_MAX;
}
int pd_snk_is_vbus_provided(int port)
{
return sm5803_is_vbus_present(port);
}
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